Bhagavad Gita · 16.8

असत्यमप्रतिष्ठं ते जगदाहुरनीश्वरम्।अपरस्परसम्भूतं किमन्यत्कामहैतुकम्॥

asatyam apratiṣhṭhaṁ te jagad āhur anīśhvaram aparaspara-sambhūtaṁ kim anyat kāma-haitukam

They say the world is unreal, without foundation, without God, brought about by nothing other than mutual union driven by desire. What else could be its cause?

— Bhagavad Gita 16.8

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)